CVE-2025-55135 Cross-site scripting in Agora
Attackers can execute arbitrary scripts via malicious SVG profile pictures in Agora, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-55135?
CVE-2025-55135 is a medium-severity cross-site scripting vulnerability in Agora, published on 7 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Agora Foundation Agora fall23-Alpha1 before 690ce56, there is XSS via a profile picture to server/controller/userController.js. Formats other than PNG, JPEG, and WEBP are permitted by server/routes/userRoutes.js; this includes SVG.
Weakness: CWE-434
Which versions are affected by CVE-2025-55135?
How do I fix CVE-2025-55135?
No fix has been published for CVE-2025-55135 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-55135 being exploited?
There is no known exploitation of CVE-2025-55135 in the wild and no public exploit code.
Sources
Also known as GHSA-jcj4-g9w3-h34q.